.rr{
    animation: rotato 2s linear infinite;
}
.mask{
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 500;
    background: rgba(0,0,0,.5);
}
@keyframes rotato{
    0%{
        transform: rotate(0deg);
    }
    100%{
        transform: rotate(360deg);
    }
}
.loading{
    text-align: center;
    margin-top: 40px;
}


.shang{
    animation: shang .5s ease;
}

.xia{
    animation: xia 0.5 ease;
}
.shang-enter-active{
    animation: shang .5s ease;
}
.shang-leave-active{
    animation: xia .7s ease;
}

@keyframes shang{
    0%{
        transform: translateY(100%);
    }
    100%{
        transform: translateY(0%);
    }
}
@keyframes xia{
    0%{
        transform: translateY(0%);
    }
    100%{
        transform: translateY(100%);
    }
}
